TY - JOUR
T1 - (2S,1′R,2′R,3′R)-2-(2,3-Dicarboxycyclopropyl) glycine enhances quisqualate-stimulated inositol phospholipid hydrolysis in hippocampal slices
AU - Nicoletti, Ferdinando
AU - Casabona, Giacomo
AU - Genazzani, Armando A.
AU - L'Episcopo, Maria Rita
AU - Shinozaki, Haruhiko
PY - 1993/5/15
Y1 - 1993/5/15
N2 - In adult rat hippocampal slices,(2S,1′R,2′R,3′R)-2-(2,3-dicarboxyxyclopropyl)glycine (DCG-IV) did not affect the basal hydrolysis of polyphosphoinositides but dramatically enhanced (EC50 value = 30 nM the stimulation of [3H]inositol monophosphate (InsP) formation by quisqualate, without substantially affecting the stimulation produced by maximal concentrations of 1S,3R-aminocyclopentane-1,3-dicarboxylic acid (ACPD) or carbamylcholine. α-Amino-3-hydroxy-5-methylisoxazole-4-propionate (AMPA) was virtually devoid of activity on [3H]InsP formation, either in the absence or presence of DCG-IV. These results suggest that DCG-IV acts, directly or indirectly, as a positive modulator of metabotropic glutamate receptors in the rat hippocampus.
AB - In adult rat hippocampal slices,(2S,1′R,2′R,3′R)-2-(2,3-dicarboxyxyclopropyl)glycine (DCG-IV) did not affect the basal hydrolysis of polyphosphoinositides but dramatically enhanced (EC50 value = 30 nM the stimulation of [3H]inositol monophosphate (InsP) formation by quisqualate, without substantially affecting the stimulation produced by maximal concentrations of 1S,3R-aminocyclopentane-1,3-dicarboxylic acid (ACPD) or carbamylcholine. α-Amino-3-hydroxy-5-methylisoxazole-4-propionate (AMPA) was virtually devoid of activity on [3H]InsP formation, either in the absence or presence of DCG-IV. These results suggest that DCG-IV acts, directly or indirectly, as a positive modulator of metabotropic glutamate receptors in the rat hippocampus.
KW - (Hippocampal slices)
KW - Metabotropic glutamate receptors
KW - dicarboxycyclopropylglycine
KW - quisqualate
UR - https://www.scopus.com/pages/publications/0027176230
U2 - 10.1016/0922-4106(93)90111-L
DO - 10.1016/0922-4106(93)90111-L
M3 - Article
SN - 0922-4106
VL - 245
SP - 297
EP - 298
JO - European Journal of Pharmacology: Molecular Pharmacology
JF - European Journal of Pharmacology: Molecular Pharmacology
IS - 3
ER -